RHN | Displaying messages during deployment

["shinjan sen" <shinjansenin gmail com>]

Hi,
I had a query on displaying messages during deployment using RHN.   If an deployment fails (during execution of %pre section) then the RHN deployment window does not provide any message. Interestingly in the completed systems tab I can see the target system though in realty the RPM didn't get installed. 
It will be great if someone can share some pointers around providing custom messages which can be viewed while deployment from RHN.

Many Thanks,
Shinjan